Wash basin



FIG. 1 is a top perspective view of a wash basin showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a bottom view thereof.

The ornamental design for a wash basin, as, shown and described. 